[Coco] Using that 16/32/64 MB RamDrive.

[Gene Heskett]

On Thursday 05 February 2004 23:28, Paul T. Barton wrote:
>Mark,
>
>Gee, I don't know. I'll try and dsave
>my biggest partition to /r0 and see.
>
>Formatting is really a pain. For now
>I have 15.9MB and formatting counts
>from $000 to $3DF. iIt takes about
>3-4 minutes. The actual dsave-copy is
>pretty fast.
>
>I wish that I had another version of FORMAT
>just for this ramdrive that wouldn't print
>the sector #'s and "run faster".
>
Can you set it for logical only, with no verify?  Unless its 
verifying, which is where the sectors get counted up, a logical 
format should only take a few milliseconds.  It only has to compose 
and write 3 sectors to do that, LSN0 for the usual reasons, LSN1 for 
the fat, and LSN2 for the first sector of the root directory.  
Everything else gets written as needed anyway.

That to me is the main reason I use my own ramdisk "myram", which when 
first accessed, finds itself unformatted, so it holds the access for 
a few milliseconds while its doing a quick logical, and then lets the 
access that triggered it on through.  If you did a "dir /r0", there 
was a barely perceptable pause, and then it showed you an empty root 
directory.

>---
>
>Robert, could you give a detailed analysis
>of the stack math that you're doing. Maybe
>I can do it faster keeping it all in registers
>(and maybe not).
>
>--- Mark Marlette <mmarlett at isd.net> wrote:
>> At 02:19 PM 2/5/2004 -0800, you wrote:
>>
>> Paul,
>>
>> Just curious..... How long does it take to load
>> the 64MB RAM disk? Test
>> files, pictures what ever to fill the 64MB? I'm
>> guessing a couple of
>> hours???? This would be a NitrOS-9 test,
>> dsaving from a hard drive to the RAM disk.
>>
>> Mark
>> Cloud-9
>
>--snipped--
>
>
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-- 
Cheers, Gene
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Copyright 2004 by Maurice Eugene Heskett, all rights reserved.